Pedro H. C. Sant'Anna (@pedrohcgs) / X

Pedro H. C. Sant'Anna

4,159 posts

Pedro H. C. Sant'Anna

@pedrohcgs

Associate Professor @EmoryEconomics | Econometrics | Causal Inference | Difference-in-Differences. Dad 5x

Atlanta, GA

Joined June 2012

Pinned
Pedro H. C. Sant'Anna
@pedrohcgs
Jul 14, 2025
We have some updates on our DDD paper. In our latest version, we have introduced three new applications and an open-source R package to facilitate the usage of all our DDD tools! 🚀R package: marcelortiz.com/triplediff/ 🔎Updated paper: arxiv.org/abs/2505.09942
Pedro H. C. Sant'Anna
@pedrohcgs
May 16, 2025
🚨New paper alert🚨 My paper with @marcelortizv on "Better Understanding Triple Differences Estimators" is finally out. 📰 psantanna.com/files/DDD_OVS.… Main msg: Nuances in DDD designs challenge the practice of generally viewing DDD as the diff btw two DiDs. We can do better! 1/
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Pedro H. C. Sant'Anna
@pedrohcgs
Mar 18, 2025
This paper has been in the making for so long that eight children across the co-author group were born between the time we started and now! But it is finally out, and you can check it at arxiv.org/pdf/2503.13323
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Pedro H. C. Sant'Anna
@pedrohcgs
Jun 5, 2024
I am now preparing some DiD lecture slides to give a talk at Amazon, and I have created this DiD Checklist. I am sharing them here in case some of you find it useful!
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Pedro H. C. Sant'Anna
@pedrohcgs
Jul 16, 2021
🦶🦶🚨New DiD Paper🚨🦶🦶 What if treatment is continuous not binary? What parameters can you estimate under what assumptions? What about two-way fixed effects regressions? What about staggered timing? Brant Callaway, @agoodmanbacon and I dive in here: arxiv.org/pdf/2107.02637…
Pedro H. C. Sant'Anna
@pedrohcgs
Mar 22, 2023
😍I'm coming back to Academia😍 I am joining @EmoryEconomics in September! My time as a full-time tech economist has been excellent. It has helped me become a better communicator and practitioner. But I am so happy and excited about this new chapter! Full-time researcher
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Pedro H. C. Sant'Anna
@pedrohcgs
Dec 18, 2020
🚨Hello #EconTwitter! I am very happy that my paper with Brantly Callaway, "Difference-in-Differences with multiple time periods", is now forthcoming at the Journal of Econometrics. sciencedirect.com/science/articl… What are the main take aways? I will ask my daughter to help me out. 1/n
Pedro H. C. Sant'Anna
@pedrohcgs
Jan 4, 2024
Are you using DiD to learn about something *continuous*? If so, then new DiD tools for binary designs don’t seem to help much. But here is something that will help! An update to “DiD with a Continuous Treatment” w/ @agoodmanbacon and Brant Callaway: psantanna.com/files/CGBS.pdf
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Pedro H. C. Sant'Anna
@pedrohcgs
Dec 30, 2024
Here are the first five sets of slides: 01 Introduction: psantanna.com/DiD/01_Introdu… 02 Classical 2x2 setup: psantanna.com/DiD/02_two_by_… 03 Clustering issues: psantanna.com/DiD/03_Cluster… 04 Functional form: psantanna.com/DiD/04_Functio… 05 Covariates: psantanna.com/DiD/05_Covaria…
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Pedro H. C. Sant'Anna
@pedrohcgs
May 31, 2023
If you want to learn Causal Inference from one of the best and most productive researchers on the area, I have some good news for you!! @pengding00 lecture notes are here 👇👇👇
arxiv.org
A First Course in Causal Inference
I developed the lecture notes based on my ``Causal Inference'' course at the University of California Berkeley over the past seven years. Since half of the students were undergraduates, my lecture...
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Pedro H. C. Sant'Anna
@pedrohcgs
Jan 3, 2025
I've decided to collect my DiD materials in a single place. psantanna.com/did-resources There, you will find - 14 lectures of my comprehensive DiD course - Shorter lectures/talks I have given on DiD - My DiD R packages - Some DiD checklists - DiD materials from my friends Enjoy!
Pedro H. C. Sant'Anna
From psantanna.com
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Pedro H. C. Sant'Anna
@pedrohcgs
Oct 14, 2020
For all people doing IV in their work, this brand new paper seems *very* relevant! arxiv.org/abs/2010.05058 One important takeaway msg is: Rule of 1st stage F stats > 10 can be very misleading. Authors also give nice alternative inference tools that can “rescue” us all!
Pedro H. C. Sant'Anna
@pedrohcgs
Jan 3, 2022
Hey #EconTwitter, #HealthPolicy, #PoliticalScience and #SocialScience in general. Do you feel lost about recent advances in DiD? We are here to help! What's Trending in Difference-in-Differences? A Synthesis of the Recent Econometrics Literature psantanna.com/files/RSBP_DiD… 1/n
Pedro H. C. Sant'Anna
@pedrohcgs
Aug 8, 2022
Do you use Difference-in-Differences methods? Have you ever wondered how selection into treatment relates to parallel trends? The role of unobservables? @DaliaAGhanem, @wuthrich_k, and I are very excited to share our paper: arxiv.org/abs/2203.09001 1/n
Pedro H. C. Sant'Anna
@pedrohcgs
Apr 25, 2023
In Stata 18, you can now use Callaway and Sant'Anna (2021) as part of the @Stata shipped software! The commands are hdidregress and xthdidregress. We will keep updating the csdid command, too, so you can use it with other Stata versions. stata.com/new-in-stata/h…
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